Finding the Fourth Proportional to 201.29, 277.79 and 113.99
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Solution
The fourth proportional to 201.29, 277.79 and 113.99 is: 157.31
Step by Step Solution
- Step 1: Write the proportion equation
201.29 : 277.79 = 113.99 : x - Step 2: Convert to fraction form
201.29/277.79 = 113.99/x - Step 3: Cross multiply
201.29x = 277.79 × 113.99 - Step 4: Simplify right side
201.29x = 31,663.32 - Step 5: Solve for x
x = 31,663.32/201.29 - Step 6: Final answer
x = 157.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.